//前缀小图标*
.ico-orders,.ico-invite,.ico-vouchers,.ico-credit,.ico-info,.ico-points//21x21
{background:url("@{imgDir}/skin_default/common_icon.png?v=@{version}") no-repeat ;display:inline-block;}

//21 x 21
.ico-orders{background-position:0 -191px;}//我的订单
.ico-points{background-position:-86px -191px;}//我的积分
.ico-invite{background-position:-16px -191px;}//邀请好友
.ico-vouchers{background-position:-32px -191px;}//点券
.ico-credit{background-position:-47px -191px;}//账户余额
.ico-info{background-position:-63px -191px;}//帐号管理